TS EAMCET · Chemistry · Surface Chemistry

The most effective coagulating agent among the options for ${Sb}_{2} S_{3}$ sol is

A ${Na}_{2} {SO}_{4}$
B ${Al}_{2} {({SO}_{4})}_{3}$
C ${CaCl}_{2}$
D ${NH}_{4} Cl$

Verified Solution

Answer & Solution

Correct Answer

(B) ${Al}_{2} {({SO}_{4})}_{3}$

Step-by-step Solution

Detailed explanation

Sb2S3 sol is negatively charged sol. Hardy schulze rule states that greater is the valency of of oppositely charged ion of the electrolyte being added, Faster is coagulation. The principle is electrostatic forces of attraction. Greater the valency of flocculating ion, greater is…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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The most effective coagulating agent among the options for Sb2S3 sol is

Step-by-step Solution

The most effective coagulating agent among the options for ${Sb}_{2} S_{3}$ sol is